{"id":"https://openalex.org/A5115729128","orcid":null,"observed_orcids":[],"display_name":"Hyeonjae Choi","raw_author_names":["Choi, Hyeonjae","Hyeonjae Choi"],"full_name":"Hyeonjae Choi","works_count":2,"cited_by_count":3,"summary_stats":{"2yr_mean_citedness":1.5,"h_index":1,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5115729128","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I848706","ror":"https://ror.org/04q78tk20","display_name":"Sungkyunkwan University","country_code":"KR","type":"education","lineage":["https://openalex.org/I848706"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I848706","ror":"https://ror.org/04q78tk20","display_name":"Sungkyunkwan University","country_code":"KR","type":"education","lineage":["https://openalex.org/I848706"]}],"topics":[{"id":"https://openalex.org/T10287","display_name":"Algebraic structures and combinatorial models","count":2,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10948","display_name":"Advanced Combinatorial Mathematics","count":2,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11428","display_name":"Advanced Mathematical Identities","count":1,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11680","display_name":"Advanced Algebra and Geometry","count":1,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10287","display_name":"Algebraic structures and combinatorial models","value":1.02e-05,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11428","display_name":"Advanced Mathematical Identities","value":9.9e-06,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10948","display_name":"Advanced Combinatorial Mathematics","value":5.3e-06,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11680","display_name":"Advanced Algebra and Geometry","value":3.9e-06,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.8371000289916992},{"id":"114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","score":0.5759000182151794},{"id":"133978748","wikidata":"https://www.wikidata.org/wiki/Q15955882","display_name":"Reflection symmetry","score":0.548799991607666},{"id":"118539577","wikidata":"https://www.wikidata.org/wiki/Q3402784","display_name":"Combinatorial proof","score":0.40939998626708984},{"id":"118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","score":0.2856999933719635}],"counts_by_year":[{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":2}],"display_name_alternatives":["Choi, Hyeonjae","Hyeonjae Choi"],"block_key":"h choi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5115729128","updated_date":"2026-11-07T12:08:38","created_date":"2025-01-01T00:00:00"}
